ShellPkg/Library/UefiShellDebug1CommandsLib/Edit/Edit.c

   1 /** @file
   2   Main file for Edit shell Debug1 function.
   3
   4   Copyright (c) 2005 - 2011, Intel Corporation. All rights reserved. <BR>
   5   This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #include "UefiShellDebug1CommandsLib.h"
  16 #include "TextEditor.h"
  17
  18 /**
  19   Function for 'edit' command.
  20
  21   @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  22   @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
  23 **/
  24 SHELL_STATUS
  25 EFIAPI
  26 ShellCommandRunEdit (
  27   IN EFI_HANDLE        ImageHandle,
  28   IN EFI_SYSTEM_TABLE  *SystemTable
  29   )
  30 {
  31   EFI_STATUS          Status;
  32   CHAR16              *Buffer;
  33   CHAR16              *ProblemParam;
  34   SHELL_STATUS        ShellStatus;
  35   LIST_ENTRY          *Package;
  36   CONST CHAR16        *Cwd;
  37   CHAR16              *Nfs;
  38   CHAR16              *Spot;
  39 //  SHELL_FILE_HANDLE   TempHandle;
  40
  41   Buffer      = NULL;
  42   ShellStatus = SHELL_SUCCESS;
  43   Nfs         = NULL;
  44
  45   //
  46   // initialize the shell lib (we must be in non-auto-init...)
  47   //
  48   Status = ShellInitialize();
  49   ASSERT_EFI_ERROR(Status);
  50
  51   Status = CommandInit();
  52   ASSERT_EFI_ERROR(Status);
  53
  54   //
  55   // parse the command line
  56   //
  57   Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE);
  58   if (EFI_ERROR(Status)) {
  59     if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
  60       ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, ProblemParam);
  61       FreePool(ProblemParam);
  62       ShellStatus = SHELL_INVALID_PARAMETER;
  63     } else {
  64       ASSERT(FALSE);
  65     }
  66   } else {
  67     if (ShellCommandLineGetCount(Package) > 2) {
  68       ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
  69       ShellStatus = SHELL_INVALID_PARAMETER;
  70     } else {
  71       Cwd = gEfiShellProtocol->GetCurDir(NULL);
  72       if (Cwd == NULL) {
  73         Cwd = ShellGetEnvironmentVariable(L"path");
  74         if (Cwd != NULL) {
  75           Nfs = StrnCatGrow(&Nfs, NULL, Cwd+3, 0);
  76           if (Nfs != NULL) {
  77             Spot = StrStr(Nfs, L";");
  78             if (Spot != NULL) {
  79               *Spot = CHAR_NULL;
  80             }
  81             Spot = StrStr(Nfs, L"\\");
  82             if (Spot != NULL) {
  83               Spot[1] = CHAR_NULL;
  84             }
  85             gEfiShellProtocol->SetCurDir(NULL, Nfs);
  86             FreePool(Nfs);
  87           }
  88         }
  89       }
  90
  91       Status = MainEditorInit ();
  92
  93       if (EFI_ERROR (Status)) {
  94         gST->ConOut->ClearScreen (gST->ConOut);
  95         gST->ConOut->EnableCursor (gST->ConOut, TRUE);
  96         ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN(STR_EDIT_MAIN_INIT_FAILED), gShellDebug1HiiHandle);
  97       } else {
  98         MainEditorBackup ();
  99
 100         //
 101         // if editor launched with file named
 102         //
 103         if (ShellCommandLineGetCount(Package) == 2) {
 104           FileBufferSetFileName (ShellCommandLineGetRawValue(Package, 1));
 105 //          if (EFI_ERROR(ShellFileExists(MainEditor.FileBuffer->FileName))) {
 106 //            Status = ShellOpenFileByName(MainEditor.FileBuffer->FileName, &TempHandle, EFI_FILE_MODE_CREATE|EFI_FILE_MODE_READ|EFI_FILE_MODE_WRITE, 0);
 107 //            if (!EFI_ERROR(Status)) {
 108 //              ShellCloseFile(&TempHandle);
 109 //            }
 110 //          }
 111         }
 112
 113         Status = FileBufferRead (MainEditor.FileBuffer->FileName, FALSE);
 114         if (!EFI_ERROR (Status)) {
 115           MainEditorRefresh ();
 116
 117           Status = MainEditorKeyInput ();
 118         }
 119
 120         if (Status != EFI_OUT_OF_RESOURCES) {
 121           //
 122           // back up the status string
 123           //
 124           Buffer = CatSPrint (NULL, L"%s", StatusBarGetString());
 125         }
 126
 127         MainEditorCleanup ();
 128
 129         //
 130         // print editor exit code on screen
 131         //
 132         if (Status == EFI_SUCCESS) {
 133         } else if (Status == EFI_OUT_OF_RESOURCES) {
 134           ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN(STR_GEN_OUT_MEM), gShellDebug1HiiHandle);
 135         } else {
 136           if (Buffer != NULL) {
 137             if (StrCmp (Buffer, L"") != 0) {
 138               //
 139               // print out the status string
 140               //
 141               ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN(STR_EDIT_MAIN_BUFFER), gShellDebug1HiiHandle, Buffer);
 142             } else {
 143               ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN(STR_EDIT_MAIN_UNKNOWN_EDITOR_ERR), gShellDebug1HiiHandle);
 144             }
 145           } else {
 146             ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN(STR_EDIT_MAIN_UNKNOWN_EDITOR_ERR), gShellDebug1HiiHandle);
 147           }
 148         }
 149
 150         if (Status != EFI_OUT_OF_RESOURCES) {
 151           SHELL_FREE_NON_NULL (Buffer);
 152         }
 153       }
 154     }
 155     ShellCommandLineFreeVarList (Package);
 156   }
 157   return ShellStatus;
 158 }